======================== unified (from filesystem) ========================
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                                        'duration'  '211'
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                                      'lastfmtags'  "['reggae', 'skinhead reggae', 'ska', 'jamaica', 'all']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '20'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
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                                             'key'  '5A'
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======================== rawer (from filesystem) ========================

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'TBPM' (BPM (beats per minute))                     '150'
'TCMP'                                              '1'
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'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004-03-15'
'TIT2' (Title/songname/content description)         'Charming Version'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Lloyd Charmers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Blood and Fire'
'TRCK' (Track number/Position in set)               '5/20'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Charmers, Lloyd'
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'TXXX:Acoustid Id'                                  '4e91a030-f3dc-4fb2-834a-652c9787c54b'
'TXXX:Artists'                                      'Lloyd Charmers'
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'TXXX:CATALOGNUMBER'                                'BAFCD 045'
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'TXXX:MusicBrainz Album Id'                         '6f2ddcbe-a09c-4524-b435-dae3b2eb8bae'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
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'TXXX:MusicBrainz Release Group Id'                 '026f4933-a606-3bb5-9e0b-08efcc45b551'
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'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['reggae', 'skinhead reggae', 'ska', 'jamaica', 'all']
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.43 dB'
'TXXX:replaygain_track_peak'                        '0.503334'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/The Abyssinians/The Abyssinians And Friends - Tree of Satta- Volume 1/05 - The Abyssinians And Friends - Lloyd Charmers - Charming - Version.mp3
                                         'working'  None
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                                    'duration_sec'  211
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  5129797
                                           'mtime'  1620522454
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub And Volume 1 05 And loc style reggae or dub or ska or dancehall dub roots reggae
                                      'tag_artist'  Lloyd Charmers
                                     'tag_release'  The Abyssinians and Friends: Tree of Satta
                                       'tag_title'  Charming Version
                                             'bpm'  150.0
                                    'search_title'  'charming':1 'version':2
                                   'search_artist'  'charmers':2 'lloyd':1
                                  'search_release'  'abyssinians':2 'and':3 'friends':4,5 'of':7 'satta':8 'the':1 'tree':6
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                                    'search_combo'  '00reggae':13 '1':17 'abyssinians':6C 'and':7C,15 'charmers':4B 'charming':1A 'dancehall':23 'dub':14 'friends':8C,9C 'lloyd':3B 'loc':18 'of':11C 'or':21 'reggae':20 'roots':24 'satta':12C 'ska':22 'style':19 'the':5C 'tree':10C 'version':2A 'volume':16
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'skinhead reggae', 'ska', 'jamaica', 'all']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620522454.1910405  (2021-05-09 03:07:34)
                             'size'  5129797